Drag is important in a lot of salt water fishing. Take a cheap drag reel, and let a bonefish run, watch the drag fry. Drag need will depend on what you are fishing for. I am not familiar with Teton's drag system so I won't comment. I have mostly Orvis reels.

This is my take on spools/lines. Other may have other opinions. For my larger rods, 6 wt and above. I have multi-tip lines. Not shooting heads, but multi tip. An example is SA Quad Tip. For my fishing, this works well. Floating, intermediate, sink tip, etc. Quick to change, cast decent. Not as good as separate lines, but does not required multiple lines on multiple spools. Less to carry, less to buy. Yea when the line wears out, I'll have to buy another expensive multi tip line, but for me I like the solution. They make freshwater and salt water versions on the multi tip lines. I am planning on going salt water fishing some time, and will simply buy a couple salt water multip tip lines.

I use them for my Smallmouth bass fishing, and most my fresh water fishing.

-wayne